Recently moved to Utah (temporarily) and I have frozen windshield spray. Moved from an area that didn't have fluid capable of withstanding cold temps..anybody have any tips on how to defrost this so I can see out my windshield? God knows when it will warm up here (if ever) and am tired of going to gas station every trip to clean the windshield.

LOL!
I really hate to laugh at your situation, but I've been there.
Living in MN I used to buy 'summer' and 'winter' washer fluid.
My Audi had a 1 gallon reservoir...
I think you can guess where this is going.
We get a sudden snow storm in early November and my entire reservoir is frozen into a semi-solid mush.
The engine heat started to thaw it by the time I got home, so I sat in the driveway running the windshield and head light washers in short bursts until I emptied the damn thing out.

On our Cayenne, Porsche recommends adding a little bit of Phosphate free anti-freeze to the reservoir to prevent from freezing. The windshield fluid is not the regular blue stuff that you get in the auto parts store. I have to premix 1 measure some kind of wash concentrate to 100 measures water and pour in the reservoir. The reservoir takes 2 gallons to fill. The solution is really good and streak free and I plan on using in the Jeep once it gets empty.

I know this is an old thread but I cant figure out how to post a new post so I am adding to this one -- new user of the site --

Have 2014 JGC - last winter had multiple occurrences of frozen washer fluid - each time it appeared to be in the reservoir at the bottom of the unit where the pump outtake is. I actually took the reservoir off and emptied it and used the -20 fluid -- it still occurred. used a space heater to defrost it (in my 30F garage) - it worked - but as soon as it went outside again a few hours frozen... Well first cold spell here in 2015 (15F) same thing -- fluid frozen somewhere - this has to be a design flaw... anyone else out there corroborate this? any additional suggestions? additives? beyond what is posted here

I suppose the type and strength of washer fluid one can buy varies by region.

Living in WI can bring some cold weather. I don't recall ever having washer fluid freeze up in my vehicles... even the ones that sat outside overnight.

I use an all season washer fluid called Purple Power, made by Zecol out of Medina, MN. It's a combination washer, antifreeze and deicer that's rated to -35F. It will cut through ice on the windshield and it leaves no streaks on the glass. Best stuff I've ever used.

I know this is an old thread but I cant figure out how to post a new post so I am adding to this one -- new user of the site --

Have 2014 JGC - last winter had multiple occurrences of frozen washer fluid - each time it appeared to be in the reservoir at the bottom of the unit where the pump outtake is. I actually took the reservoir off and emptied it and used the -20 fluid -- it still occurred. used a space heater to defrost it (in my 30F garage) - it worked - but as soon as it went outside again a few hours frozen... Well first cold spell here in 2015 (15F) same thing -- fluid frozen somewhere - this has to be a design flaw... anyone else out there corroborate this? any additional suggestions? additives? beyond what is posted here

Have you tried adding pure isopropyl alcohol?
Unfortunately if you curve the freezing point with different concentrations of isopropanol, it has to be about 80% to get to -35 F and as it gets much below -70 or so it starts thickening up.

Ethanol at 80% freezes at -75 F, where only Alaskans and Rogers Pass Montana folks would need to care, but is hard to find in pure form and is a bit more corrosive.

Methanol at 80% freezes at -125 F, but has some minor drawbacks such as being able to literally make you go blind, high toxicity, corrosivity, etc.

Ethylene Glycol at 60% will take you to just under -60F...

It gets a tad complicated as you start mixing isopropyl and the lowest molecular weight glycols... antifreeze may have other stuff in it for engine protection that gunks up your windshield and washer systems---much like not using rubbing alcohol instead of pure isopropyl.